<fieldset>
  <legend>Search</legend>
  <span style="text-align: center;">
    <% form_tag(search_url, :method => :get, :class => "search_form") do %>
      <%= text_field_tag :query, @query || params[:query], :size => "15" %><br />
      <%= select options_for_select(@menu_options) %><br />
      <%= submit_tag 'Search', :disable_with => "Searching" %>
    <% end %>
  </span>
</fieldset>